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IEC 61000-3-2-2020 pdf free download
IEC 61000-3-2-2020 pdf free download.Electromagnetic compatibility (EMC) — Part 3-2: Limits — Limits for harmonic current emissions (equipment input current ≤16 A per phase).
The reproducibility (see 3.16) of measurements on the same EUT with different test systems cannot be definitively calculated so as to apply to all possible combinations of EUT, harmonics meter and test supply, but can be estimated to be better than ± (1 % + 10 mA), where the 1 % is I % of the average value of the total input current taken over the entire test observation period. Therefore, differences in results which are less than that value of current are deemed negligible, but in some cases a higher value can occur.
For the avoidance of doubt in such cases, test results, obtained at different locations or on different occasions, that show that all the relevant limits are met shall be accepted as demonstrating compliance, even though the results can differ more than the values for repeatability and reproducibility, given above.
NOTE The variability (see 3.17) of measurements on different EUTs of the same type, having no intentional differences, can be increased by practical component tolerances and other effects, such as possible interactions between the characteristics of the EUT and the measuring Instrument or the power supply. The results of these effects cannot be quantified in this document, for the same reasons as for reproducibility. The second paragraph of 126.96.36.199 also applies in the case of variability.
A concession in respect of limit values to allow for possible variability Is outside the scope of this document.
188.8.131.52 Starting and stopping
When a piece of equipment is brought into operation or is taken out of operation, manually or automatically, harmonic currents and power are not taken into account for the first 10 s following the switching event.
The equipment under test shall not be in stand-by mode (see 3.14) for more than 10 % of any observation period.
184.108.40.206 Application of limits
The average values for the individual harmonic currents, taken over the entire test observation period, shall be less than or equal to the applicable limits.IEC 61000-3-2-2020 pdf free download.
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